Reddit User Active Subreddits
https://api.sandbase.ai/v1/api/reddit/app/user-active-subredditsReturns a list of Reddit communities where a specified user participates most actively. Supports optional response formatting.
- Price
- $0.0015USD / callFirst 100 calls per day free (shared per organization)
- Method
- POST
- Response
- JSON
- Parameters
- 1 required · 1 optional
Try the model
Playground
[
{
"data": {
"redditorInfoByName": {
"__typename": "Redditor",
"activeSubreddits": []
}
}
}
]Examples
Select an example to load its inputs and result into the playground.
Model card
Specifications
Pricing
- Base price
- $0.0015 / run
- Daily free calls
- First 100 calls per day free (shared per organization)
Request & response
- Method
- POST
- Request body
- application/json
- Response
- application/json
- Execution
- sync
Parameters
- username
- string · required
- need_format
- boolean · optional
Access
- Provider
- API
- Platform API
- Base URL
- https://api.sandbase.ai
- Endpoint
- /v1/api/reddit/app/user-active-subreddits
- Authentication
- Bearer API key
API README
Reddit User Active Subreddits API
Retrieve the communities where a specific user is most active by providing their username. Use need_format to toggle cleaned response output.
Use cases
- Analyze user interest patterns across Reddit communities.
- Evaluate an author's topical engagement across subreddits.
- Gather community participation data for user research.
Request
curl -X POST "https://api.sandbase.ai/v1/api/reddit/app/user-active-subreddits" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"username": "<username>"}'
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
username | string | Yes | Reddit username |
need_format | boolean | No | Whether to clean and format the data |
Notes
- Set
need_formatto true to clean and format the returned data.
Related APIs
- Reddit Subreddit Mute Status: Checks whether a specified Reddit subreddit is muted by the current account using its ID.
- Reddit App Comment Replies: Returns replies and nested sub-comments under a Reddit post comment using a continuation cursor.
- Reddit Community Highlights: Returns featured highlight content for a designated Reddit community, such as popular posts and announcements, by subreddit ID.
Start building
Send your first request
Platform API endpoint with unified authentication and usage tracking.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/api/reddit/app/user-active-subreddits" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"username": "example"
}
SANDBASE_JSON
)
printf '%s\n' "$result"Explore more
Related APIs
| API | Price | Response | Released |
|---|---|---|---|
Reddit User Active SubredditsThis API Reddit | $0.0015 per call | JSON | Jul 31, 2026 |
Reddit | $0.0015 per call | JSON | Jul 31, 2026 |
Reddit | $0.0015 per call | JSON | Jul 31, 2026 |
Reddit | $0.0015 per call | JSON | Jul 31, 2026 |
Reddit | $0.0015 per call | JSON | Jul 31, 2026 |
Reddit | $0.0015 per call | JSON | Jul 31, 2026 |
Questions
FAQ
How do I use the Reddit User Active Subreddits API?
Send a POST request to https://api.sandbase.ai/v1/api/reddit/app/user-active-subreddits with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.
How much does the Reddit User Active Subreddits API cost?
$0.0015 per call. Every organization gets 100 free calls per UTC day, shared across eligible SandBase APIs including this one; after that each call is billed at this price from your SandBase balance. There is no subscription.
What parameters does the Reddit User Active Subreddits API accept?
Required: username (string). Optional: need_format (boolean). The Parameters table and the Playground on this page list every field.
What does the Reddit User Active Subreddits API return?
A JSON response returned in the same HTTP request (synchronous).
Do I need a Reddit developer account or API key?
No. Reddit User Active Subreddits runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for Reddit API access separately.